![exit status 1'SensorPin' was not declared in this scope//How to fix the error while compiling//part4 - YouTube exit status 1'SensorPin' was not declared in this scope//How to fix the error while compiling//part4 - YouTube](https://i.ytimg.com/vi/rr2fM-kg4vo/maxresdefault.jpg)
exit status 1'SensorPin' was not declared in this scope//How to fix the error while compiling//part4 - YouTube
![error: 'wifi_station_get_reconnect_policy' was not declared in this scope - Programming Questions - Arduino Forum error: 'wifi_station_get_reconnect_policy' was not declared in this scope - Programming Questions - Arduino Forum](https://aws1.discourse-cdn.com/arduino/optimized/4X/3/7/8/3784d9e90a30e511db48bc080dcb5908ad01dcba_2_1024x819.jpeg)
error: 'wifi_station_get_reconnect_policy' was not declared in this scope - Programming Questions - Arduino Forum
![c++ - Why do I get a not declared in this scope error even though the header file is included? - Stack Overflow c++ - Why do I get a not declared in this scope error even though the header file is included? - Stack Overflow](https://i.stack.imgur.com/KsTdT.png)
c++ - Why do I get a not declared in this scope error even though the header file is included? - Stack Overflow
error: 'memcpy' was not declared in this scope while compiling protobuf in QNX · Issue #21553 · grpc/grpc · GitHub
![c++ - Why do I get a not declared in this scope error even though the header file is included? - Stack Overflow c++ - Why do I get a not declared in this scope error even though the header file is included? - Stack Overflow](https://i.stack.imgur.com/b9Grx.png)